I have a few guesses: 1. iOS 13.5 beta releases have had security fixes that haven't still reached a stable release. See [1] for eg. 2. The Apple iPhones for

I have a few guesses: 1. iOS 13.5 beta releases have had security fixes that haven't still reached a stable release. See [1] for eg. 2. The Apple iPhones for security researchers program[0] actually led to more security issues being found? [0]: https://www.theverge.com/2019/8/8/20756629/apple-iphone-security-research-device-program-vulnerabilities https://www.theverge.com/2019/8/8/20756629/apple-iphone-secu... [1]: https://siguza.github.io/psychicpaper/ https://siguza.github.io/psychicpaper/